.clearfix::after{
    content: '';
    display: block;
    clear: both;
}
*{
  margin: 0;
  padding:0;
}
a{
  text-decoration: none;
}
ul{
  list-style: none;
}
img{
  width: 100%;
}
.center{
  margin: 0 auto;
}
    
/**********************头部*********************/
.header{
    position: fixed;
    top: 0;
    height: 50px;
    width: 100%;
    background-color: #303643;
    z-index: 2;
    opacity: 0.85;
  }  
  .header-con {
    display: flex;
    align-items: center;
    width: 1200px;
    height: 50px;
    margin:  0 auto;
  }
  .nav{
    margin: auto;
  }
  .nav ul li{
    float: left;
    :hover{
      background-color:#53c9c6;
    }
  }
  
  .fill li a {
    font-weight: 600;
    display: inline-block;
    position: relative;
    padding: 0 20px;
    line-height: 50px;
    color: #fff;
    font-size: 14px;
    transition: background-color ease .3s;
  }
  
   .logo img {
    width: 132px;
    height: 42px;
  }
  .message{
    float: right;
    background-color: gray;
    width: 32px;
    height: 32px;
    border-radius: 50%;
  }
  .message img{

    border-radius: 50%;
  }
  .loginbtn{
    float: right;
    background: #36cfc9;
    opacity: 0.9;
    color:#00474f;
    font-size: 14px;
    height: 32px;
    border-radius: 5px;
    line-height: 32px;
    text-align: center;
    -webkit-transition: color 0.3s ease-out 0s;
    transition: color 0.3s ease-out 0s;
    width: 70px;
    margin-left: 10px;
  }
  .loginbtn:hover {
    color: #fff;
  }
  .logo{
    float: left;
    margin-right:50px;
    font-size: 20px;
  }
  .header span{
    color: #53c9c6;
    font-size: 30px;
  }
  .header input{
    margin-right: 50px;
    width: 200px;
    height: 28px;
    text-indent: 1em;
  }

/**********************页脚************************************/
.footer{
    background: #333;
    width: 100%;
    height: 60px;
    padding: 20px 0;
    color: #8E8E8E;
    .footer-con{
      width: 1200px;
      height: 60px;
    }
    }
    .flink{
      color: #CECECE;
      font-size: 14px;
      a{
      margin-right: 40px;
      height: 20px;
      color: #CECECE;
    }
    
      span{
        margin-left: 20px;
      }
      a:hover ,span:hover{
          color:#35aba8;
        }
      img{
        height: 25px;
        width: 25px;
        position: relative;
        top: 6px;
      }
    }
    .copyright{
      color: #CECECE;
    font-family: Arial;
    margin-top: 22px;
    font-size: 12px;
    }
    .green{
      color: #35aba8;
    }
    